Hi All
So as per the subject my GTI seems to really struggle if its stuck in traffic for a length of time. Its happened twice now. Happened yesterday when I was stuck on a B road for about an hour crawling at 5mph stop/start due to an accident ahead.
First thing that happens (after about 30 mins of very slow moving/idling) is the yellow emission control lamp came on (permanent).
About 5 mins after this the engine starts juddering. 10 mins later the yellow EPC light comes on.
I made the mistake of turning the ignition off and then it wouldnt start/turn over for about 3-4 mins.
54K on the clock - last service was in February this year.
When it's not stuck in a jam its absolutely fine no issues at all, drives smooth and no warning lights on dash.
Any ideas on the cause/what to check for?